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Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Cymodoceaceae
Genus: Halodule

Diplanthera Thouars 1806 not Gleditsch 1764 (Acanthaceae) nor Banks & Sol. ex R. Br. 1810 (syn of Deplanchea in Bignoniaceae) nor Schrank 1819 (Acanthaceae) nor Raf. 1833 (syn of Platanthera in Orchidaceae)

Halodule is a genus of plants in the family Cymodoceaceae described as a genus in 1841.[2][3] It is widespread on tropical and semi-tropical ocean shores of all continents except Europe and Antarctica.[1][4][5][6][7]


Hybridization has been reported in the Pacific between H. pinifolia and H. uninervis.[8]

  1. Halodule bermudensis - Bermuda
  2. Halodule ciliata - Panama
  3. Halodule emarginata - SE Brazil
  4. Halodule pinifolia - India, Sri Lanka, Southeast Asia, Hainan, Taiwan, Ryukyu Islands, New Guinea, Queensland, Fiji, New Caledonia, Tonga, Caroline Islands
  5. Halodule uninervis - shores of Indian + Pacific Oceans, Red Sea, Persian Gulf, Bay of Bengal, Papuasia, Queensland, Micronesia
  6. Halodule wrightii - Atlantic Ocean shores including Caribbean + Gulf of Mexico: Africa (Senegal, Mauritania, Angola), West Indies, South America (Venezuela, Brazil), Mexico, Central America, USA (TX LA MS AL FL NC MD)


  1. ^ a b c Kew World Checklist of Selected Plant Families
  2. ^ Endlicher, Stephan Friedrich Ladislaus. 1841. Genera plantarum secundum ordines naturales disposita Supplementum 1(2)1368–1369 in Latin
  3. ^ Tropicos, Halodule Endl.
  4. ^ Davidse, G., M. Sousa Sánchez & A.O. Chater. 1994. Alismataceae a Cyperaceae. 6: i–xvi, 1–543. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D.F..
  5. ^ Schatz, G. E., S. Andriambololonera, Andrianarivelo, M. W. Callmander, Faranirina, P. P. Lowry, P. B. Phillipson, Rabarimanarivo, J. I. Raharilala, Rajaonary, Rakotonirina, R. H. Ramananjanahary, B. Ramandimbisoa, A. Randrianasolo, N. Ravololomanana, Z.S. Rogers, C.M. Taylor & G. A. Wahlert. 2011. Catalogue of the Vascular Plants of Madagascar. Monographs in systematic botany from the Missouri Botanical Garden
  6. ^ Flora of North America Vol. 22 Halodule Endlicher, Gen. Pl., Suppl. 1(2): 1368. 1841.
  7. ^ Flora of China Vol. 23 Page 119 二药藻属 er yao zao shu Halodule Endlicher, Gen. Pl. 1368. 1841.
  8. ^ Ito, Y. and Nr. Tanaka (2011) Hybridisation in a tropical seagrass genus, Halodule (Cymodoceaceae), inferred from plastid and nuclear DNA phylogenies. Telopea 13: 219-231

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